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Finding the Fourth Proportional to 15,643.52, 23,478.95 and 9,060.65

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Solution

The fourth proportional to 15,643.52, 23,478.95 and 9,060.65 is: 13,598.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,643.52 : 23,478.95 = 9,060.65 : x
  2. Step 2: Convert to fraction form
    15,643.52/23,478.95 = 9,060.65/x
  3. Step 3: Cross multiply
    15,643.52x = 23,478.95 × 9,060.65
  4. Step 4: Simplify right side
    15,643.52x = 212,734,548.32
  5. Step 5: Solve for x
    x = 212,734,548.32/15,643.52
  6. Step 6: Final answer
    x = 13,598.89

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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.