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Finding the Fourth Proportional to 39,681.70, 59,521.78 and 9,696.13

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Solution

The fourth proportional to 39,681.70, 59,521.78 and 9,696.13 is: 14,544.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,681.70 : 59,521.78 = 9,696.13 : x
  2. Step 2: Convert to fraction form
    39,681.70/59,521.78 = 9,696.13/x
  3. Step 3: Cross multiply
    39,681.70x = 59,521.78 × 9,696.13
  4. Step 4: Simplify right side
    39,681.70x = 577,130,916.71
  5. Step 5: Solve for x
    x = 577,130,916.71/39,681.70
  6. Step 6: Final answer
    x = 14,544.01

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1.5x scale

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.