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Finding the Fourth Proportional to 13,070.88, 18,038.88 and 7,482.24

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Solution

The fourth proportional to 13,070.88, 18,038.88 and 7,482.24 is: 10,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.88 : 18,038.88 = 7,482.24 : x
  2. Step 2: Convert to fraction form
    13,070.88/18,038.88 = 7,482.24/x
  3. Step 3: Cross multiply
    13,070.88x = 18,038.88 × 7,482.24
  4. Step 4: Simplify right side
    13,070.88x = 134,971,229.49
  5. Step 5: Solve for x
    x = 134,971,229.49/13,070.88
  6. Step 6: Final answer
    x = 10,326.10

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1.5x scale

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.