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Finding the Fourth Proportional to 35,411.55, 53,089.05 and 16,681.71

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Solution

The fourth proportional to 35,411.55, 53,089.05 and 16,681.71 is: 25,009.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,411.55 : 53,089.05 = 16,681.71 : x
  2. Step 2: Convert to fraction form
    35,411.55/53,089.05 = 16,681.71/x
  3. Step 3: Cross multiply
    35,411.55x = 53,089.05 × 16,681.71
  4. Step 4: Simplify right side
    35,411.55x = 885,616,136.28
  5. Step 5: Solve for x
    x = 885,616,136.28/35,411.55
  6. Step 6: Final answer
    x = 25,009.25

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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.