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Finding the Fourth Proportional to 15,038.64, 22,560.96 and 4,650

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Solution

The fourth proportional to 15,038.64, 22,560.96 and 4,650 is: 6,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.64 : 22,560.96 = 4,650 : x
  2. Step 2: Convert to fraction form
    15,038.64/22,560.96 = 4,650/x
  3. Step 3: Cross multiply
    15,038.64x = 22,560.96 × 4,650
  4. Step 4: Simplify right side
    15,038.64x = 104,908,464
  5. Step 5: Solve for x
    x = 104,908,464/15,038.64
  6. Step 6: Final answer
    x = 6,975.93

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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.