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Finding the Fourth Proportional to 14,657,681.70, 21,986,522.55 and 10,878,545.70

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Solution

The fourth proportional to 14,657,681.70, 21,986,522.55 and 10,878,545.70 is: 16,317,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657,681.70 : 21,986,522.55 = 10,878,545.70 : x
  2. Step 2: Convert to fraction form
    14,657,681.70/21,986,522.55 = 10,878,545.70/x
  3. Step 3: Cross multiply
    14,657,681.70x = 21,986,522.55 × 10,878,545.70
  4. Step 4: Simplify right side
    14,657,681.70x = 239,181,390,344,255.53
  5. Step 5: Solve for x
    x = 239,181,390,344,255.53/14,657,681.70
  6. Step 6: Final answer
    x = 16,317,818.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.