Home / 7,475.12-10,307.85-5,583.74

Finding the Fourth Proportional to 7,475.12, 10,307.85 and 5,583.74

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Solution

The fourth proportional to 7,475.12, 10,307.85 and 5,583.74 is: 7,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.12 : 10,307.85 = 5,583.74 : x
  2. Step 2: Convert to fraction form
    7,475.12/10,307.85 = 5,583.74/x
  3. Step 3: Cross multiply
    7,475.12x = 10,307.85 × 5,583.74
  4. Step 4: Simplify right side
    7,475.12x = 57,556,302.82
  5. Step 5: Solve for x
    x = 57,556,302.82/7,475.12
  6. Step 6: Final answer
    x = 7,699.72

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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.