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Finding the Fourth Proportional to 9,038.61, 13,557.93 and 5,938.20

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Solution

The fourth proportional to 9,038.61, 13,557.93 and 5,938.20 is: 8,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,038.61 : 13,557.93 = 5,938.20 : x
  2. Step 2: Convert to fraction form
    9,038.61/13,557.93 = 5,938.20/x
  3. Step 3: Cross multiply
    9,038.61x = 13,557.93 × 5,938.20
  4. Step 4: Simplify right side
    9,038.61x = 80,509,699.93
  5. Step 5: Solve for x
    x = 80,509,699.93/9,038.61
  6. Step 6: Final answer
    x = 8,907.31

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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.