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Finding the Fourth Proportional to 35,802.72, 53,715.02 and 12,445.56

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Solution

The fourth proportional to 35,802.72, 53,715.02 and 12,445.56 is: 18,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,802.72 : 53,715.02 = 12,445.56 : x
  2. Step 2: Convert to fraction form
    35,802.72/53,715.02 = 12,445.56/x
  3. Step 3: Cross multiply
    35,802.72x = 53,715.02 × 12,445.56
  4. Step 4: Simplify right side
    35,802.72x = 668,513,504.31
  5. Step 5: Solve for x
    x = 668,513,504.31/35,802.72
  6. Step 6: Final answer
    x = 18,672.14

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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.