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Finding the Fourth Proportional to 1,159.52, 1,600 and 924.08

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Solution

The fourth proportional to 1,159.52, 1,600 and 924.08 is: 1,275.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.52 : 1,600 = 924.08 : x
  2. Step 2: Convert to fraction form
    1,159.52/1,600 = 924.08/x
  3. Step 3: Cross multiply
    1,159.52x = 1,600 × 924.08
  4. Step 4: Simplify right side
    1,159.52x = 1,478,528
  5. Step 5: Solve for x
    x = 1,478,528/1,159.52
  6. Step 6: Final answer
    x = 1,275.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.